i am 5'6" have 2 plates in my cervical spine and wear progressive lenses. this chair lets you adjust the seat back closer to or further back from the from edge of the seat.the height adjustment is pretty good. it could be about an inch higher for my prescription. at my height the headrest is perfect.
My wife needed a chair that would be comfortable for her to sit in for 8+ hours a day. She said that this chair is alot better than her previous chair!!! This one is a keeper.
Great chair. Really comfy. Great back support and mesh keeps u cool all day. Head rest is great too. Highly recommended and easy to put together. Took about 10 minutes.